no start INFINITI FX35 2008 Service Manual

HEADLAMP - XENON TYPE -LT-5
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HEADLAMP - XENON TYPE -
Component Parts and Har ness Connector LocationINFOID:0000000001328265
System DescriptionINFOID:0000000001328266
Control of the headlamp system operation is dependent upon t he position of the combination switch (lighting
switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives input
signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the IPDM E/
R (intelligent power distribution module engine room) through the CAN communication lines. The CPU (central
processing unit) located in the IPDM E/R contro ls the headlamp high and headlamp low relay coils. These
relays, when energized, direct power to the respective headlamps, which then illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times
 to headlamp high relay, located in IPDM E/R
 to headlamp low relay, located in IPDM E/R and
 to ignition relay, located in IPDM E/R, from battery direct,
 through 10A fuse (No. 71, located in IPDM E/R)
 to CPU located in IPDM E/R,
 through 15A fuse (No. 78, located in IPDM E/R)
 to CPU located in IPDM E/R,
 through 50A fusible link (letter M, located in fuse, fusible link and relay box)
 to BCM terminal 55,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42,
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to combination meter terminal 8.
With ignition switch in ON or START position, power is supplied
 to ignition relay, located in IPDM E/R, from battery direct
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38,
 through 10A fuse [No. 14, located in fuse block (J/B)]
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HEADLAMP - XENON TYPE -LT-15
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2. Understand operation description and function description. Refer to LT- 5 , "System Description".
3. Perform Preliminary Check. Refer to LT-15, "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Does headlamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328274
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT- 9 , "
Wiring Diagram - H/LAMP -".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 72
74
76
86
(+)
(-)Ignition switch position
BCM con- nector Terminal OFF ACC ON
M3 11
Ground Approx. 0 V
Battery volt-
age Battery volt-
age
38 Approx. 0 V Approx. 0 V Battery volt-
age
M4 42
Battery volt-
age Battery volt-
age Battery volt-
age
55 Battery volt-
age Battery volt-
age Battery volt-
age
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LT-18
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
NOTE:
Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at ACC, display may not
be correct.
ACTIVE TEST
Headlamp Does Not Change To High Beam (Both Sides)INFOID:0000000001381742
1.CHECK COMBINATION SWITCH INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Select “HI BEAM SW” of BCM data monitor item.
2. With operating the lighting switch, check the monitor status.
CHECK THE COMBINATION SWITCH
Refer to LT-104, "
Combination Switch Inspection".
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer to LT-104, "
Combination Switch Inspection".
2.HEADLAMP ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select “LAMPS” of IPDM E/R active test item.
2. With operating the test item, check the headlamp high beam operation.
IPDM E/R AUTO ACTIVE TEST
1. Start auto active test. Refer to PG-20, "
Auto Active Test".
2. Check that the headlamp high beam operation.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK IPDM E/R
Item name CONSULT-III
screen display Display
or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
Position lights request TAIL & CLR REQ ON/OFF ×× ×Signal status input from BCM
Headlamp low beam request HL LO REQ ON/OFF ×× ×Signal status input from BCM
Headlamp high beam request HL HI REQ ON/OFF ×× ×Signal status input from BCM
Front fog lights request FR FOG REQ ON/OFF ×× ×Signal status input from BCM
Te s t i t e mCONSULT-III
screen display Description
Headlamp relay (HI, LO) output
LAMPSAllows headlamp relay (HI, LO) to operate by switching operation (OFF, HI ON,
LO ON) at your option (Headlamp high beam repeats ON-OFF every 1 second).
Front fog lamp relay output Allows front fog lamp relay to operate by switching operation ON-OFF at your op-
tion.
Tail lamp relay output TAIL LAMP Allows tail lamp relay to operate by switching operation ON-OFF at your option.
When lighting switch is
HIGH BEAM : HI BEAM SW ON
Headlamp high beam should operate.
(Headlamp high beam repeats ON-OFF every 1 second).
Headlamp high beam should operate.
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HEADLAMP - XENON TYPE -LT-19
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CONSULT-III DATA MONITOR
1. Select “HL LO REQ” and “HL HI RE Q” of IPDM E/R data monitor item.
2. With operating the lighting switch, check the monitor status
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and Installation of IPDM E/R".
NG >> Replace BCM. Refer to BCS-13, "
Removal and Installation of BCM".
4.CHECK HEADLAMP INPUT SIGNAL
CONSULT-III ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connectors.
3. Select “LAMPS” of IPDM E/R active test item
4. With operating the test item, check voltage between front combi- nation lamp (RH and LH) harness connectors and ground.
NOTE:
Headlamp high beam repeats ON–OFF every 1 second.
IPDM E/R AUTO ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connectors.
3. Start auto active test. Refer to PG-20, "
Auto Active Test".
4. With operating the test item, check voltage betw een front combination lamp (RH and LH) harness connec-
tors and ground.
NOTE:
Headlamp high beam repeats ON–OFF every 1 second.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.CHECK HEADLAMP CIRCUIT When lighting switch is
HIGH BEAM
: HL LO REQ ON
: HL HI REQ ON
Te r m i n a l s
Voltag e
(Approx.)
(+)
(-)
Front combination lamp
connector Te r m i n a l
RH E24 5 Ground Battery voltage
LH E44 5
Te r m i n a l s Voltag e
(Approx.)
(+)
(-)
Front combination lamp
connector Te r m i n a l
RH E24 5 Ground Battery voltage
LH E44 5
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HEADLAMP - XENON TYPE -LT-21
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1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and front combination lamp RH or LH harness connector.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and Installation of IPDM E/R".
NG >> Repair harness or connector.
3.CHECK HEADLAMP GROUND
Check continuity between front combination lamp RH or LH harness
connector and ground.
OK or NG
OK >> Check headlamp harness and connector.
NG >> Repair harness or connector.
Headlamp Low Beam Does No t Illuminate (Both Sides)INFOID:0000000001381744
1.CHECK COMBINATION SWITCH INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Select “HEAD LAMP SW1” and “HEAD LA MP SW2” of BCM data monitor item.
2. With operating the lighting switch, check the monitor status.
CHECK THE COMBINATION SWITCH
Refer to LT-104, "
Combination Switch Inspection".
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer to LT-104, "
Combination Switch Inspection".
2.HEADLAMP ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select “LAMPS” of IPDM E/R active test item.
2. With operating the test item, check the headlamp low beam operation.
IPDM E/R AUTO ACTIVE TEST
1. Start auto active test. Refer to PG-20, "
Auto Active Test".
2. Check that the headlamp low beam operation.
OK or NG
Te r m i n a l s
Continuity
IPDM E/R Front combination lamp
Connector Terminal Connector Terminal
RH E7 27 E24 5
Ye s
LH 28 E44 5
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Front combination lamp
connector Terminal
Ground Continuity
RH E24 7 Ye s
LH E44 7
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When lighting switch is 2ND
position : HEAD LAMP SW1 ON
: HEAD LAMP SW2 ON
Headlamp low beam should operate.
Headlamp low beam should operate.
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LT-22
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK IPDM E/R
CONSULT-III DATA MONITOR
1. Select “HL LO REQ” of IPDM E/R data monitor item.
2. With operating the lighting switch, check the monitor status.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and Installation of IPDM E/R".
NG >> Replace BCM. Refer to BCS-13, "
Removal and Installation of BCM".
4.CHECK HEADLAMP INPUT SIGNAL
CONSULT-III ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connectors.
3. Select “LAMPS” of IPDM E/R active test item.
4. With operating the test item, check voltage between front combi- nation lamp (RH and LH) harness connectors and ground.
IPDM E/R AUTO ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connectors.
3. Start auto active test. Refer to PG-20, "
Auto Active Test".
4. With operating the test item, check voltage betw een front combination lamp (RH and LH) harness connec-
tors and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.CHECK HEADLAMP CIRCUIT When lighting switch is 2ND
position
: HL LO REQ ON
Te r m i n a l s
Vo l ta g e
(Approx.)
(+)
(-)
Front combination lamp
connector Te r m i n a l
RH E24 6 Ground Battery voltage
LH E44 6
Te r m i n a l s Vo l ta g e
(Approx.)
(+)
(-)
Front combination lamp
connector Te r m i n a l
RH E24 6 Ground Battery voltage
LH E44 6
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HEADLAMP - XENON TYPE -LT-27
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Xenon Headlamp Trouble DiagnosisINFOID:0000000001328286
1.CHECK 1: XENON HEADLAMP LIGHTING
Install normal xenon bulb to corresponding xenon bulb headlamp, and check if lamp lights up.
OK or NG
OK >> Replace xenon bulb.
NG >> GO TO 2.
2.CHECK 2: XENON HEADLAMP LIGHTING
Install normal HID control unit to corresponding xenon headlamp, and check if lamp lights up.
OK or NG
OK >> Replace HID control unit.
NG >> GO TO 3.
3.CHECK 3: XENON HEADLAMP LIGHTING
Install normal xenon lamp housing assembly to corresponding xenon headlamp, and check if lamp lights up.
OK or NG
OK >> Replace xenon headlamp housing assembly. [Malfunction in starter (boosting circuit) in xenon headlamp housing]
NG >> INSPECTION END
Aiming AdjustmentINFOID:0000000001328287
PREPARATION BEFORE ADJUSTING
For details, refer to the regulations in your own country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on level ground.
3. Set that there is no-load in vehicle other than the driv er (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank.
LOW BEAM AND HIGH BEAM
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LT-32
< SERVICE INFORMATION >
DAYTIME LIGHT SYSTEM
DAYTIME LIGHT SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000001328291
System DescriptionINFOID:0000000001328292
Daytime light system turns ON daytime light lamps while driving. Daytime light lamps are not turned ON if
engine is activated with parking brake ON. Release parki ng brake to turn ON daytime light lamps. The lamps
turn OFF when the lighting switch is in the 2ND pos ition or AUTO position (headlamp is ON) and when the
lighting switch is in the PASSING position (daytime light lamps are not turned OFF only by parking brake
itself).
The parking brake signal and engine run or stop signal ar e sent to BCM (body control module) by CAN com-
munication line, and control daytime light system.
OUTLINE
Power is supplied at all times
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to combination meter terminal 8,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42,
 through 50A fusible link (letter M, located in fuse, fusible link and relay box)
 to BCM terminal 55,
 through 10A fuse (No. 36, located in fuse, fusible link and relay box)
 to daytime light relay terminals 2 and 5.
When ignition switch is in ON or START position, power is supplied
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DAYTIME LIGHT SYSTEMLT-41
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O PHow to Proceed with Trouble DiagnosisINFOID:0000000001328298
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-32, "
System Description".
3. Perform Preliminary Check. Refer to LT-41, "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Does daytime light lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328299
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer to LT-35, "
Wiring Diagram - DTRL -".
OK or NG
35 W/G Combination
switch output 2 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Any of the conditions below
 Lighting switch 2ND
 Lighting switch PASSING (Operates only PASSING
switch)
Approx. 1.2 V
38 W/L Ignition switch
(ON)
ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply
OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
Unit Power source Fuse and fusible link No.
BCM Battery M
22
Ignition switch ON or START position 1
Daytime light relay Battery 36
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LT-48
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
The headlamps will then illuminate. For a description of headlamp operation, Refer to LT- 5 , "System Descrip-
tion".
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
DELAY TIMER FUNCTION
Delay timer function carries out a function that BCM ac tivates the timer and controls lights out of headlamps by
door switch signal and lightning switch signal when turn ing the Ignition switch OFF while it is ON and head-
lamps are ON by the auto light function.
Timer types are a 5 minute timer and a 45 second timer
 When opening any door (door switch is ON), the 5 mi nute timer starts and then headlamps go out 5 minutes
later
 When all the doors are closed (from door switch ON to OFF), the 45 second timer starts and then headlamps go out 45 seconds later. If any door is opened (door switch ON) while the 45 second timer is in operation, the
5 minute timer starts again
 The timer stops when turning on the ignition switch or turning off the auto light switch under the above condi-
tions.
Delay timer control mode can be changed by the f unction setting of CONSULT-III or display.
CAN Communication System DescriptionINFOID:0000000001328308
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001328309
Refer to LAN-43, "CAN System Specification Chart".
Major Component and FunctionsINFOID:0000000001328310
Components Functions
BCM  Turns on/off circuits of tail light and headlamp according to signals from light sensor, lighting switch (AUTO),
driver door switch, passenger door switch, rear door switch, and ignition switch (ON, OFF).
Optical sensor  Converts outside brightness (lux) to voltage, and sends it to BCM. (Detects brightness of 800 to 2,500 lux)
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